Featured Puzzle: Index Sums #1 – Hidden Presents
Okay, Mom and Dad are out shopping. Now’s your chance to snoop for presents! The problem is that it involves a bit of math. They must have hidden them based on your last report card.
Okay, Mom and Dad are out shopping. Now’s your chance to snoop for presents! The problem is that it involves a bit of math. They must have hidden them based on your last report card.
I really liked the concept behind Index Sums puzzles. Do a little mild arithmetic based on the values of rows and columns, and shade the appropriate cells to reach the given totals. I use a chalkboard for the look in several other puzzle types, so why not a whiteboard here?
What a lovely day for a walk in the park! Better yet, it’s time for the annual Snowman-Building contest! Of course, you don’t want to trample all over the designated snowman positions. Can you deduce where the snowman will be built, and then plan a route that circles the rest of the park?
Shade four cells in each region to place exactly one L, I, T, or S-tetromino there. Shaded cells form one orthogonally contiguous area.
Shade four cells in each region to place exactly one L, I, T, or S-tetromino there. Shaded cells form one orthogonally contiguous area.
Shade four cells in each region to place exactly one L, I, T, or S-tetromino there. Shaded cells form one orthogonally contiguous area.
Today, we have a “couples” variant of L.I.T.S. Normally, you need to shade 4 cells in each region to place a single tetromino. In Double L.I.T.S., you must shade a total of 8 cells, to place two tetrominoes in each region.
Shade four cells in each region to place exactly one L, I, T, or S-tetromino there. Shaded cells form one orthogonally contiguous area.
Happy Rubber Ducky Day! I swear, there’s an internet holiday for just about everything. The first patent for a rubber duck was by Landon Smart Lawrence in 1928. But the version we know and love today was designed in the 1940s by sculptor Peter Ganine. He sold millions, but of course, popularity really soared thanks to Ernie on Sesame Street.
Today, we’re retheming a Japanese puzzle called Nondango. Dango is a popular street food, small balls made from rice flour skewered on bamboo sticks. But I thought instead of simply shading circles, we could hide some rubber ducks.
A relatively new trend is the world of speed-dating. A large group of eligible singles gather in one place, and spend a few minutes with other people seeking romantic partners. They quickly gauge their interest in each other, then a bell rings, and they move on to the next potential partner. If nothing else, it’s a way to train your social skills in learning to talk to strangers.
So let’s make it a puzzle!